drm/ssd130x: Make default width and height to be controller dependent

Currently the driver hardcodes the default values to 96x16 pixels but this
default resolution depends on the controller. The datasheets for the chips
describes the following display controller resolutions:

 - SH1106:  132 x 64 Dot Matrix OLED/PLED
 - SSD1305: 132 x 64 Dot Matrix OLED/PLED
 - SSD1306: 128 x 64 Dot Matrix OLED/PLED
 - SSD1307: 128 x 39 Dot Matrix OLED/PLED
 - SSD1309: 128 x 64 Dot Matrix OLED/PLED

Add this information to the devices' info structures, and use it set as a
default if not defined in DT rather than hardcoding to an arbitrary value.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230609170941.1150941-2-javierm@redhat.com